Insulator for fluid containers



FIG. 1 is a top, front, left side perspective view of an insulator for fluid containers showing my new design;

FIG. 2 is a top, rear, right side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a left side elevational view thereof; and

FIG. 8 is a perspective view thereof in an open position, the fluid container in broken lines to illustrate environmental structure. 

The ornamental design for an insulator for fluid containers, as shown and described. 